Thermionic emission tshwm sim li cas?

Cov txheej txheem:

Thermionic emission tshwm sim li cas?
Thermionic emission tshwm sim li cas?

Video: Thermionic emission tshwm sim li cas?

Video: Thermionic emission tshwm sim li cas?
Video: Photochemical smog 2024, Hlis ntuj nqeg
Anonim

Thermionic emission tshwm sim hauv cov hlau uas tau rhuab mus rau qhov kub siab heev. Hauv lwm lo lus, thermionic emission tshwm sim, thaum ntau lub zog sab nraud hauv daim ntawv ntawm tshav kub tau muab rau cov hluav taws xob dawb hauv cov hlau.

Lub hauv paus ntawm cov thermionic emission yog dab tsi?

Thermionic emission of electron

Thermionic sources vam on tshav kub los tsim electrons, zoo ib yam li lub teeb uas tsim los ntawm incandescent lightbulbs. Raws li qhov tam sim no siv rau cov filament (los yog siv lead ua), nws tau ua kom sov kom txog thaum nws cov electrons muaj lub zog txaus kom khiav tawm ntawm cov khoom nto.

Qhov twg thermionic emission ntawm electrons tshwm sim?

Thermionic emission yog emission ntawm electrons los ntawm cov hlau rhuab (cathode). Lub hauv paus ntsiab lus no yog thawj zaug siv hauv Coolidge raj thiab tom qab ntawd tom qab nyob rau niaj hnub no x-ray raj. Ua ntej qhov kev tshawb pom ntawm lub hauv paus ntsiab lus, cov raj roj tau siv rau kev tsim x-ray.

Cov tshuaj tiv thaiv thermal yog dab tsi?

Txhais: Cov nyhuv Thermionic lossis Thermionic Emission tuaj yeem txhais tau tias yog qhov tshwm sim uas cov hluav taws xob tawm ntawm cov hlau thaum tshav kub siv rau cov hlau Lo lus Thermionic yog tsim los ntawm cov lus Thermal thiab ions. Thermal txhais tau tias cua sov thiab ions yog them cov khoom.

Vim li cas electron emission tshwm sim?

Electron emission is the txheej txheem thaum ib qho hluav taws xob khiav tawm ntawm cov hlau ntoTxhua lub atom muaj qhov zoo tshaj plaws ntawm cov khoom siv hluav taws xob thiab cov hluav taws xob tsis zoo nyob ib puag ncig nws. Qee lub sij hawm cov electrons no xoob khi rau lub nucleus. Li no, me ntsis thawb lossis kais teeb tsa cov electrons ya tawm ntawm lawv lub orbits.

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